I am a 30-06 fan but it is too close balistically to the 308. I would buy 270WSM or 300 WSM or stick with the 308 and use this for the moose.
http://www.doubletapammo.com/php/catalog/product_info.php?cPath=21_52&products_id=206
Point blank range is still over 250 yards and KE levels are over 2000 LBS at 300 yds. It would have no problem taking out a moose to 300 yds.